Housekishou Richard-shi no Nazo Kantei S01E12 - Tanzanite of rebirth

Seigi`s father Shimeno Hisashi appears before him. Shimeno divorced Hiromi when Seigi was in grade school and has approached him now that he`s grown. Though Seigi drives him off, Shimeno begins appearing everywhere Seigi goes. Not wanting to cause trouble for Richard or anyone else around him, Seigi tells Richard he wants to quit working at Etranger while hiding the reason from him...